/* 页面全局居中 */
body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, sans-serif;
}

/* 乘法表容器 */
.table-container {
    text-align: left;
}

/* 乘法项单元格样式 */
.cell {
    display: inline-block;
    border: 2px solid #0066cc;
    background-color: #fff;
    padding: 8px 12px;
    margin: 2px;
    font-size: 16px;
    transition: all 0.2s ease; /*  hover 过渡效果 */
}

/* 鼠标 hover 时的样式变化 */
.cell:hover {
    background-color: #0066cc;
    color: #fff;
    border-color: #003366;
    cursor: pointer;
}